Biomass power generation - China's installed biomass power generation capacity ranks first in the world for three consecutive years


Biomass power generation - China's installed biomass power generation capacity ranks first in the world for three consecutive years

China's cumulative grid-connected installed capacity for biomass power generation reached 29.52 million kilowatts by the end of 2020, ranking first in the world for the third consecutive year, according to a report on the development of China's biomass power industry released by the Biomass Energy Branch of the China Association for Industrial Development.

According to the report, China will add 5.43 million kilowatts of biomass power generation in 2020, generating 132.6 billion kilowatt-hours of electricity annually, and generating 112.2 billion kilowatt-hours of online electricity annually.
By the end of 2020, the installed capacity of biomass power generation accounted for 3.2 percent of China's total installed capacity of renewable energy, and the share of electricity generation reached 6.0 percent.

In 2020, China's top five provinces in terms of cumulative installed capacity of biomass power generation are Shandong, Guangdong, Jiangsu, Zhejiang and Anhui, with installed capacity of 3.655 million KW, 2.824 million KW, 2.42 million KW, 2.41 million KW and 2.138 million KW, respectively.
The top five newly installed provinces were Shandong, Henan, Zhejiang, Jiangsu and Guangdong, with 677GW, 646GW, 417GW, 389GW and 360GW, respectively.

In 2020, China's newly installed power generation capacity from waste incineration reached 3.11 million kilowatts, with a cumulative installed capacity of 15.33 million kilowatts.
According to the report, the volume of domestic garbage removal and the rate of harmless disposal have continued to grow, and the demand for waste incineration is also increasing.
In order to meet the demand of domestic waste consumption by waste incineration, the amount of waste incineration will continue to grow as the market of waste incineration for power generation moves from the eastern region to the central and western regions and towns.
In agricultural and forestry biomass power generation, 2.17 million kilowatts of installed capacity will be added by 2020, bringing the total installed capacity to 13.3 million kilowatts.
According to the report, since 2018, the number of hours spent on agricultural and forestry biomass power generation projects has declined year by year due to continued arrears in subsidies for renewable energy.
Statistics show that in 2019, there were 188 projects using more than 5,000 hours, with a total installed capacity of 5.26 million kilowatts.
The report judged that about half of the country's projects were still operating normally under the pressure of arrears in electricity subsidy payments.

In particular, the Report emphasizes that the development of China's biomass power generation industry is still facing huge challenges. There is still regional imbalance in the development of waste incineration power generation. The NIMBY problem caused by environmental emissions is still prominent, and the industry relies too much on electricity price subsidies under the background of low waste treatment fees.
In addition, the unreasonable distribution of agricultural and forestry biological power generation in local areas still exists, the supply of raw materials is difficult to guarantee, and the upgrading and transformation of some power generation projects is difficult in the process of transformation to cogeneration of heat and power.

According to the report, during the 14th Five-Year Plan period, China's new capacity of agricultural and forestry biomass power generation will reach 3.7 million kilowatts, and the total installed capacity will reach 17 million kilowatts.
The new capacity of waste incineration power generation will reach 6.7 million kilowatts, and the total installed capacity is expected to reach 22 million kilowatts.

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The generator set control module adopts the microprocessor-based

The generation principle of biomass synthesis gas: biomass raw materials enter the reactor of the gasification furnace, after being heated and dried, and then as the temperature rises, its volatile matter is precipitated and pyrolyzed (cracked) at high temperature. The pyrolyzed gas and production The substance undergoes a combustion reaction with the supplied air in the oxidation zone to produce CO2 and water vapor. The heat generated by combustion is used to maintain drying, pyrolysis and endothermic reactions in the lower reduction zone. The gas produced after combustion passes down the reduction zone and reacts with the high-temperature carbon layer (C+CO2=2CO, C+HO2=H2+CO) to generate biomass synthesis gas containing CO, H2, CH4, CmHn, etc. It is drawn from the bottom, and is sent out for use after the purification system removes impurities such as tar. The ash is discharged from the lower part of the gasifier. The generator set control module adopts the microprocessor-based generator set control technology, which has many functions such as automatic data recording, automatic operation, automatic control, automatic protection, etc., and has good reliability and stable performance. The operating parameters of the unit are displayed by a large-screen LCD, which displays large and accurate data.


which is convenient for transportation and installation

Biomass gasifier is composed of furnace body system, dust removal system, cooling system, tar purification system, tar separation system, Roots blower, electrical control system, etc. The syngas generator set is mainly composed of a gas engine, a three-phase AC synchronous engine, a control cabinet, a common chassis and a gas source link part. The KX series biomass synthesis gas power generation system adopts modular design, which is convenient for transportation and installation. The KX series biomass gasifier is a downdraft, fluidized bed biomass gasifier independently designed and developed for the needs of biomass synthesis gas power generation. This series of biomass gasifier uses PLC intelligent system control The system fully realizes long-term fully automatic work. And the dry purification technology used in the gasifier avoids secondary water pollution to the natural environment. Moreover, the raw materials are highly adaptable, requiring the size of the biomass raw materials to be ≤30mm and the moisture content ≤20%. Pass various biomass raw materials through the gasifier for drying, cracking, oxidation and reduction to produce biomass synthesis gas, and then the biomass synthesis gas is cooled, dusted, and cooled to remove tar and impurities in the gas, and the processed high-quality , The pure biomass synthesis gas is transported to the synthesis gas generator set for power generation. In this way, while realizing the conversion of low-value biomass energy from solid to gaseous, it greatly improves the utilization efficiency of solid biomass energy. Biomass gasification is the process of converting solid biomass (wood chips, branches, organic household waste, agricultural and forestry waste, etc.) into combustible biomass synthesis gas. By controlling the reaction process, carbon, hydrogen, and oxygen are chemically reacted. It is synthesized into combustible components such as carbon monoxide, hydrogen and methane, and most of the energy in biomass raw materials is transferred to biomass synthesis gas. This is the gasification process of biomass gasifier. The generation principle of biomass synthesis gas: biomass raw materials enter the reactor of the gasification furnace, after being heated and dried, and then as the temperature rises, its volatile matter is precipitated and pyrolyzed (cracked) at high temperature. The pyrolyzed gas and production The substance undergoes a combustion reaction with the supplied air in the oxidation zone to produce CO2 and water vapor. The heat generated by combustion is used to maintain drying, pyrolysis and endothermic reactions in the lower reduction zone. The gas produced after combustion passes down the reduction zone and reacts with the high-temperature carbon layer (C+CO2=2CO, C+HO2=H2+CO) to generate biomass synthesis gas containing CO, H2, CH4, CmHn, etc. It is drawn from the bottom, and is sent out for use after the purification system removes impurities such as tar. The ash is discharged from the lower part of the gasifier.    The generator set control module adopts the microprocessor-based generator set control technology, which has many functions such as automatic data recording, automatic operation, automatic control, automatic protection, etc., and has good reliability and stable performance. The operating parameters of the unit are displayed by a large-screen LCD, which displays large and accurate data.


Biomass gasification is the process of converting solid biomass

Biomass gasification is the process of converting solid biomass (wood chips, branches, organic household waste, agricultural and forestry waste, etc.) into combustible biomass synthesis gas. By controlling the reaction process, carbon, hydrogen, and oxygen are chemically reacted. It is synthesized into combustible components such as carbon monoxide, hydrogen and methane, and most of the energy in biomass raw materials is transferred to biomass synthesis gas. This is the gasification process of biomass gasifier. The generation principle of biomass synthesis gas: biomass raw materials enter the reactor of the gasification furnace, after being heated and dried, and then as the temperature rises, its volatile matter is precipitated and pyrolyzed (cracked) at high temperature. The pyrolyzed gas and production The substance undergoes a combustion reaction with the supplied air in the oxidation zone to produce CO2 and water vapor. The heat generated by combustion is used to maintain drying, pyrolysis and endothermic reactions in the lower reduction zone. The gas produced after combustion passes down the reduction zone and reacts with the high-temperature carbon layer (C+CO2=2CO, C+HO2=H2+CO) to generate biomass synthesis gas containing CO, H2, CH4, CmHn, etc. It is drawn from the bottom, and is sent out for use after the purification system removes impurities such as tar. The ash is discharged from the lower part of the gasifier.    The generator set control module adopts the microprocessor-based generator set control technology, which has many functions such as automatic data recording, automatic operation, automatic control, automatic protection, etc., and has good reliability and stable performance. The operating parameters of the unit are displayed by a large-screen LCD, which displays large and accurate data.